<template>
	<div>
		<h1>当前求和为：{{ sum }}</h1>
		<h3>当前求和放大10倍为:{{bigSum}}</h3>
		<h3>我在{{  school }},学习：{{  subject }}</h3>
		<select v-model.number="n">
			<option value="1">1</option>
			<option value="2">2</option>
			<option value="3">3</option>
		</select>
		<button @click="increment(n)">+</button>
		<button @click="decrement(n)">-</button>
		<button @click="incrementOdd(n)">当前求和为奇数再加</button>
		<button @click="incrementWait(n)">等一等再加</button>
	</div>
</template>

<script>
	import {mapState, mapGetters,mapMutations,mapActions} from 'vuex'
	export default {
		name:'Count',
		data() {
			return {
				n:1, //用户选择的数字
				
			}
		},
		computed:{
			...mapState(['sum','school','subject']),

			...mapGetters(['bigSum'])
		},
		methods: {
			//commit可以直接跟mutation对话
			// increment(){
			// 	this.$store.commit('JIA',this.n)
			// },
			// decrement(){
			// 	this.$store.commit('JIAN',this.n)
			// },

			//借助mapMutations生成对应的方法，方法中会调用commit方法，去联系mutation
			//1.对象写法
			...mapMutations({increment:'JIA',decrement:'JIAN'}),
			//2.数组写法
			//函数名字也要修改
			//...mapMutations(['JIA','JIAN']),


			// incrementOdd(){
			// 	this.$store.dispatch('jiaOdd',this.n)
			// },
			// incrementWait(){
			// 	this.$store.dispatch('jiaWait',this.n)
			// },

			//借助mapActions生成对应的方法，方法中会调用diapath方法，去联系actions
			//1.对象写法
			...mapActions({incrementOdd:'jiaOdd',incrementWait:'jiaWait'})
			//2.数组写法
		},
	}
</script>

<style lang="css">
	button{
		margin-left: 5px;
	}
</style>
